How do Physics Help gadgets???

By studying physics, man has understood the objects in nature and how they work : Mechanics, Light, Electricity, Magnetism, Computers, Signals. By trying to understand the underlying principles and control these elements man has tried to create machines that solve some purpose. Any gadgets, mechanical machines, cars, rockets, spaceships are the applications of the principles studied in the wonderful subject of physics. 

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  •  Physics is very useful in gadgets as all the gadget use the principles explained in physics directly or indirectly. Physics also help us in designing and increasing the efficiency of the gadgets.
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